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H. N. WIGKERSHAM & W. HUSTON.

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No. 272,816. Patented Feb.`20, 1883.

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. ing our improved UNITED STATES PATENT y Trice,

HENRY N. VICKERSHAM AND WILLIAM HUSTON,

OF 'WILllIINGTON, DEL.

EJ ECTOR.

SPECIFICATION forming part of Letters' Patent No. 272,816, dated February 20, 1883. Application led June 7, 1882. (No model.)

T0 all whom it may concern Be it known that we, HENRY N. WICKER- sHAM and WILLIAM H Us'roN, citizens of the United States,'and residents o't. Wilmington, iu the county ot' New Castle and State ot' Delaware, have invented certain new and useful Improvements in Ejectors', otwhich the following is a specification.

Our invention has forits object to set in motion columns or volumes of gas, or for purposes of ventilation to remove gases, creating drafts, or aiding combustion, or to move or set in circulation volumes of liquids, and this we accomplish by the means of appliances hereinaiter fully set torth, and illustrated in the accompanying drawings, in which- Fignre l is a longitudinal sect-ion, illustratdevice. Fig. 2 is a crosssection on the line l 2, Fig. 1; and Fig. 3 is an external view.

The device is ot' the nature ot' an ejector or injector.

.A is a casing containing a chamber, x, to which the motor gas or iiuid is admitted through a. pipe, a, and from which it passes through a pipe, b, while a pipe, d, on aline with the pipe b, admits the iinid to be moved, the pipe tl being adjustable longitudinally,or other means being employed whereby the passagey between the pipes d and b may be widened or narrowed to any required extent. The pipe b extends from the casing A through the end of another larger tubular casing or pipe, b', and this pipe b extends through the closed end ot1 another larger pipe, b2, andteach pipe b b2 has lateral openings w, arranged at points nearly opposite the ends ot' the inner pipes.

Any suitable means may be employed for adjusting the pipes to regulate the extent towhich each projects into the chamber of the next pipe, and valve devices may be used to regulate the extent ot' the openings w.

The apparatus is immersed in the iiuid to he moved, either gaseous or liquid, and the motor i'luid. gas, or liquid is admitted through the pipe ct into the chamber as, and is thiottled at the passage y, escaping into the pipe b at a greater velocity than it tlows through the pipe a, and carrying with it into the pipe b a current of the fluid in which the apparatus isirnmersed. This current passing through and from the pipe b into the next chamber, fr', and centrally through the latter, causes the surrounding tiuid to tlow through the openings w into the chamber x', and finally expels the same in a stream the diameter ot' the pipe b into and through the chamber m2, when'a fresh volume ofiiuid, admitted through the openings t0, gives Aincreased volume to the stream, so that the volume issuing from the end tube is much larger than thatadmitted through tle tube a.

It is important that each ot' the tubes b b', 85o., be ot' such length beyond the point where the injecting stream and indrawn iiuid mingle, thatthe two shall thoroughly combinein asolid column. It is also important that the pipe clbe open for the tlow ot' the Huid to be moved, for the closing ofthe pipe l would at once reduce the volume ot' duid ejected to that admit ted through the pipe a.

It is not essential to immerse the apparatus in the tluid to be moved,.as the same may be conducted tothe apparatus through pipes communicating with thepipe d and openings w w. By this means we are able by' the use ot' a small stream of steam or compressed air to move large volumes ot' air for heating, drying, cooling, Ventilating, or other purposes. We can also by the same motor-fluids raise water .or other liquids, or We can use water or other liquid for the motor tluid,although a gas under pressure is preferable.

We do not limit ourselves to the structure shown, as any device whereby the injecting duid is caused to -iiow through chambers or tubes successively increasing in diameter, and each open for the admission of additional Volumes ofthe Huid to be moved, may he employed.

We do not limit ourselves to any specilic number of pipes b b', 815e., as any number that may prove advisable may be employed.

I1. The within-described mode of imparting motion to large volumes of tluids. the same consistingin directing a smallstream ofmotortluid forward from a closed annular chamber formed around the nozzle, which admits the `tluid to be moved from the rear of said chainber, and directing the stream so formed intoa larger closed chamber and admitting an additional volume of the fluid to be moved to said IOO :o larger pipe, b2, in line with sind receiving the chamber, thereby forming and expelling a exit-pipe b, and adjustable pipe d in line with larger stream, substantially as set i'ortih. the pipe b, in combination with zi larger easing i5 2. An apparatus for moving iiuids, oonsistor pipe, b', having lateral openings, and with ing of a closed casing, A, a pipe, d, for admitn. pine, b2, in line with the pipe b', all as set ting the iinid to be moved, a pipe, a, for adforth.

mitting the motor-fluid, an outlet-pipe, b, in ln testimony whereof We have signed our line with the pipe d, eoninnnnieating,` with a names to this specification iu lthe presence oi' 2o two subscribing Witnesses.

larger pipe, b, with openings to admit additional quantities ofthe iiuid to he moved, and a HENRY N. VVlGKERSHAM.

WILLIAM HUSTON. Witnesses:

Y J osEPH W. VANDEGRIFT,

E. MORTIMER BYE.

pipe b. and having Openings w, substantially as set forth.

3. The casing A, lateral motoirfiuirl pipe a, 

